Sash.



C. F. DECK.

SASH.

APPLIOATION FILED JULY 29, 1912.

1,065,032, PatentedJune 17, 1913.

CHARLES E. DECK, OF TORONTO, ONTARIO, CANADA.

SASH.

Specification of Letters Patent.

Patented June 17,1913.

Application filed July 29, 1912. Serial No. 712,140.

T 0 all whom it may concern:

Be it known that I, CHARLES FREDERICK DECK, of the city of Toronto, in the county of York and Province of Ontario, Dominion of Canada, have invented certain new and useful Improvements in Sashes; and I hereby declare that the following is a full, clear, and exact description of the same.

My invention relates to the jointing of the vertical and horizontal bars of a metal sash, such as ordinarily used for window construction, and the object of my invention is to provide one set of the bars with dovetail grooves at the intersections to receive the correspondingly shaped tables of the other set of bars, and to shear the stems of the first mentioned set laterally from each side of the dovetail grooves to provide fleXible members which can be bent outward to permit of the tables of the other set being readily admitted to their assembled position and then bent back to a normal position to interlock therewith.

For an understanding of my invention, reference is to be had to the following description and to the accompanying drawings, in which:

Figure l, is an elevation of a window sash made in accordance with my invention; Fig. 2, is a perspective view showing the intersection of a vertical bar with a horizontal bar; Fig. 3, is an inverted plan view of the construction shown in Fig. 2; Fig. 4, is a section taken on the line 1-1 of Fig. 1, looking toward the joint, showing the formation of the finished construction; and, Fig. 5, is a view similar to Fig. 4, showing the format-ion of the joint prior to the assembly of the parts.

Like characters of reference refer to like parts throughout the specification and drawings.

In constructing my window sash, I mortise the ends of the horizontal bars a into the stiles b, and the ends of the vertical bars 0 into the rails (Z. At the intersections of the vertical and horizontal bars, I form the horizontal bars a with dovetail grooves e to receive the dovetail tables f of the vertical bars a, and I slot the stems g of the vertical bars, as shown at 9' Fig. 3, to embrace and interlock with the stems h of the horizontal bars. It is obvious that this formation of the joints will prevent the lateral separation and the horizontal displacement of the horizontal and vertical bars with relation to each other, and that the interlocking engagement of the slotted stems of the vertical bars with the stems of the horizontal bars, will prevent the lengthwise displacement of the vertical bars from their fixedpositions with relation to the horizontal bars.

To assemble the horizontal and vertical bars, I find it necessary to shear the stem h beneath the table 2' of each horizontal bar ateach intersection horizontally from each side of each dovetail groove 6, as indicated at 7', j, Figs. 2, 4 and 5, to provide the table 2' of each horizontal bar with flexible memhers 7s, 70, at each side of each intersection. These flexible members 70, is, can be bent back, as indicated in Fig. 5, to increase the width of the dovetail groove 6, so that the slotted stems g of the vertical bars 0 can freely move into position to embrace and interlock with the stems h of the horizontal bars and the dovetail tables f of the vertical bars can readily enter the dovetail grooves of the horizontal bars. When the dovetail tables f of the vertical bars have been properly seated in the dovetail grooves e of the horizontal bars, the flexible members 7a, 7a, are pressed into the position shown in Figs. 1, 2 and 4, and if the dovetail grooves e have been properly cut to fit the dovetail tables f, the beveled edges is of the flexible members 70, 70, will contact the beveled sides f, f, of the dovetail tables f.

Ordinarily, I prefer to use steel for the construction of the horizontal and vertical bars, and when this material is employed for this purpose, the natural rigidity of the metal will, under reasonable conditions of use, be suflicient to enable the flexible members to securely hold the vertical and horizontal bars in their relative places when the flexible members are pressed into the position shown in Figs. 1, 2 and 4. I may, however, as additional security against displacement, electrically or otherwise weld the joints formed by the dovetail grooves and tables, and I may find it necessary to do this should I use metal more pliable than steel in the construction of my sash.

I have described the horizontal bars as being formed with the dovetail grooves and flexible members, but it is obvious that the vertical bars may be formed with these grooves to receive the dovetail tables of the horizontal bars.

Having thus fully described the nature of my invention, What I claim as new and desire to secure by Letters Patent, is:

1. A sash, comprising a horizontal bar and a vertical bar, one of the bars being provided with a dovetail groove With flexible members at the sides thereof, the other bar having a substantially dovetail table seated Within the dovetail groove and engaged. by the flexible members.

2. A sash, comprising a set of horizontal bars and a set of vertical bars intersecting therewith, one set of bars provided With dovetail grooves at the intersections, said bars being sheared laterally from the sides of the dovetail grooves to provide flexible members, the other set of bars having dovetail tables seated in the dovetail grooves and engaged by the flexible members.

3. A sash, comprising a set of horizontal bars having dovetail grooves therein, said bars being sheared laterally from the sides of the dovetail grooves, and a set of vertical bars having slotted stems embracing and interlocking with the horizontal bars and substantially dovetail tables seated in the dovetail grooves and engaged by the flexible members.

CHARLES F. DECK.

lVitnesses O. EDGAR FRENCH, C. H. RIoHEs.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, -Washingt0n, D. G. 

